Shaping attachment for stone-planers



(N0 Modl.) Q

H. W. RIG-HTMYER. SHAPING ATTACHMENT FOR STONE PLANERS.

No. 530,903. Patented Dec. 11,1894.

WITNESSES, I INVENTOH THE ucams PETERS co, FHOTO-LITHQ. WASHINGTON, 11c

UNITED STATES PATENT OFFICE.

HOMER WESLEY RIGHTMYER, OF ULYSSE'S, NEW YORK.

SHAPING ATTACHMENT FOR STONE-PLANER'S.

SPECIFICATION forming part of Letters Patent No. 530,9Q3,dated December 11, 1894.

Application filed November 11, 1893. Serial No. 490,720. (No model.)

To all whom it may concern:

Be it known that I, HOMER WESLEY RIGHTMYER, a citizen of the United States of America, and a resident of Ulysses, Tompkins county, New York, (post-office address Taughannock Falls, New York,) have invented an improved shaping attachment especially designed for stonc-planers to produce curved and other forms in stone, but being also useful for the planing of other materials, of which the following is a specification, reference being had to the accompanying drawlngs.

My invention relates to the means by which I adapt an ordinary heavy planer, such'as is used for iron planing, to shape and plane the large heavy stone blocks, so much in demand now, without change in the planer itself; and these means consist of a heavy stone bed or platen mounted on the usual bed plate of such a planer; and the details necessary for its use; and my mechanism and invention will be apparent as I illustrate, describe, and claim them.

Figure 1 is an elevation of a planer with the platen on its bed plate. Fig. 2 is a view looking down on the platen and attached to the bed plate of the planer. Fig. 3 is a transverse sectional elevation of the platen and bed plate. Fig. 4 is a plan view of the steel balls, in the ways at the foot of the platen; and Fig. 5 is a view of the steel balls about the stud pivot of the platen.

In the figures a is the frame of a planer, and a the upright tool holder frame; and b is its bed plate, on which is the platen 0; held at its head or right hand end by the stout stud d, about which between the bed and platen is the groove plate d, which contains steel balls; and at the left hand end or foot of the platen is the groove guide plate (1, which also contains steel balls. The platen moves on these balls by the action of the guide wheels f', f; which wheels are fast to the slide barf, which is adjustable by set screws. The wheels are set closely to the pattern rail g; one or two bars for the wheels being used. The holder of the bar or bars f, is bolted, as illustrated in Fig. 2, to the upright tool holder frame, of the rear side of the planer, out of the way of its operator; and the bed of the platen on which the stone is to be planed is elevated above the wheels, and preferably covers them, and the pattern; its edge next to the operator being plain, and

the top of the bed of the platen smooth; and furnished with the usual apertures (which are not shown, since they are well known), by which in the usual manner the stone or other material to be planed, is fastened to the bed of the platen. Only one tool holding head is shown; butin practice, four are preferably put on the usual tool supporting crossbar; two to plane on the top surface of the stone; and two, one at each end of the tool cross-bar, with its tool aperture constructed in the well known form, but arranged perpendicularly, in order to plane the edge of the stone on the platen; and these need no illustration nor further description, they are so well known.

The cutting tools cut in the ordinary mannor, while the platen and material on it,

move lengthwise by the bed plate, and sidewise by the patterns fast to the platen. The variety in which the patterns, can be made, are very numerous; and guide points or surfaces may be used instead of wheels; and the wheel supports can be attached to any convenient part of the planer. Everything else is believed to be apparent.

What I claim is- 1 1. In a stone planing machine, the combination of the reciprocating bed I); the bed or platen c, pivoted thereunto by the stud d; the guide patterns g, attached to the platen c; and the wheels or rollers f f, mounted on the arm f, secured to the frame of the machine; the said parts being combined and arranged, substantially, as set forth.

2. In a stone planing machine, the described reciprocating bed b; platen c, pivoted to the bed I), by the stud d; the guide patterns g, attached to the platen c; the guide-wheels f 1, fast to the arm f,- and ways (1' d", between the bed 6 and the platen 0, combined and operating as set forth.

3. In a stone planing machine, the combined parts; I) the reciprocating machine bed; 0 the platen, pivoted about the stud d; the guide patterns g, and the rollers f f mounted on the arm the ways (1 d on which the platen rests; the said ways being provided with anti-friction rollers or balls, as set forth.

HOMER WESLEY RIGHTMYER.

Witnesses:

' SAMUEL J. PARKER,

JAMES P. DE Lone.

attached to the platen 0; 

